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Sexual dimorphism in fossil metazoa and taxonomic implications

Symposium organized by the International Palaeontological Union, Committee on Evolution, Prague 1968

Ed.: G. Westermann

1969. IV, 250 pages, 52 figures, 14 plates, 16x24cm, 700 g
Language: English

ISBN 978-3-510-99101-3, paperback, price: 24.00 €

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Keywords

dimorphismMetazoafossilDimorphismusMetazoafossil

Contents

Content Description top ↑

The aim of the present volume is to assemble data on sexual dimorphism throughout the non-colonial fossil Metazoa, to enhance the study of problematic or new discoveries of such dimorphism, to discuss possible taxonomic procedures and, if possible, to form some concensus regarding classification and nomenclature embodying the hypothesis of sexual dimorphism.

Table of Contents top ↑

A. Preface (Editor) 1
B. Biological Foundations
Ross, J. R. P.: Biologic Foundations of Sexual Dimorphism. (With 3
Text—figures) 3
Westermann, G. E. G.: Supplement: Sexual Dimorphism, Migration, and Segregation
in living Cephalopods 18
C. Mathematical Techniques
Reyment, R. A.: Statistical Analysis of Sexual Dimorphism in Some
Groups Of Living Animals. (With 1 Text—figure) 21
Oleynikov, A.N.: Recognition Of Dimorphic Groups in Conchostraca [Branchio—
poda]. (With 1 Text—figure) 28
D. Fossil Metazoa
1. Phylum Brachiopoda
Ager, D. V.: Note: Alleged Sexual Dimorphism in Mesozoic Brachiopods 34
Discussion (NEUMAN — PEARSON — AGER) 36
Ferguson, L.: Possible Brood Pouches and Sexual Dimorphism in the Productid
Brachiopod Megousia MUIR-WOOD 8c COOPER. (With Plate 1) 37
Discussion (PEARSON — AGER —— NEUMAN — FERGUSON — WATERHOUSE) 50
Harrington, J. W.: Probable Sexual Dimorphism in Leiorbynchous HALL [Rhyn-
choncllida] from the Upper Devonian of New York. (With 4 Text—figures) 52
Discussion (LOGAN — WATERHOUSE — PEARSON) 57
2. Phylum Mollusca
Heaslip, W. G.: Sexual Dimorphism in Bivalvcs. (With 6 Text—figures) 60
Discussion (KAUFFMAN — HEASLIP — WESTERMANN — STANLEY) 72
Kaufeman, E. G. & Buddenhagen, C. H.: Protandric Sexual Dimorphism in Paleo—
cene Astarte [Bivalvia] of Maryland. (With 2 Text-figures) 76
Sohl, N. F.: Gastropod Dimorphism. (With 4 Text-figures) 94
Davis, R. A., Furnish, W. M. & Glenister, B. F.: Mature Modification and Dimor-
phism in Late Paleozoic Ammonoids. (With Plates 2—5 and 2 Text—figures) 101
Callomon, J. H.: Dimorphism in Jurassic Ammonites 111
Discussion (COPE & SMITH — PALERAMAN — WESTERMANN — CALLOMON) 121
Palframan, D. F.B.: Taxonomy of Sexual Dimorphism in Ammonites:
Morpho— genetic Evidence in Hecticoccras brigktii (PRATT). (With
Plates 6—8 and 11 Text— figures) 126
Discussion (CALLOMON — PALFRAMAN — WESTERMANN) 153
Zeiss, A.: Dimorphismus bei Ammoniten des Unter—Tithon 155
Discussion (WESTERMANN — ZEISS) 163
Elmi, S.: Note: Remarques sur la Nomenclature appliquée aux
«Dimorphes» chez les Ammonites Jurassiques 165
Tintant, H.: Un cas de dimorphisme chez les Paracenocems [Nautiloidea] du
Callovien. (Avec Planches 9—12 et 4 Text-figures) 167
3. Phylum Arthropoda
Clarkson, E. N. K.: Dimorphism of the Eye in Webcria’es shunncrcnsis
(KING) [Trilobita]. (With Plate 13 and 5 Text—figures) 185
Selwood, E.B. & Burton, C.J.: Possible Dimorphism in Certain Devonian
Pha— copids [Trilobita] 196
Stormer, L. & Kjellesvig-Waering, E.N.: Sexual Dimorphism in Eurypterids.
(With 3 Text—figures) 201
4. Phylum Echinodermata
Kier, P. M.: Sexual Dimorphism in Fossil Echinoids. (With Plate 14 and 2 Text—
figures) 215
5. Phylum Vertebrata
Olson, E. C.: Note: Sexual Dimorphism in Extinct Amphibians and Reptiles 223
Kurtfin, B.: Sexual Dimorphism in Fossil Mammals. (With 4 Text—figures) 226
E. Classification and Nomenclature
Westermann, G. E.G.: Proposal: Classification and Nomenclature of Dimorphs at
the Genus—group Level 234
Discussion (PALFRAMAN — COPE 8c SMITH — ZEISS — WESTERMANN) 236
Blackwelder, R. E.: Note: Special Solutions to Taxonomic Problems 239
F. Conclusions
Sylvester-Bradley, P. C.: Comparative and Functional Sex in Ostracods and
Cephalopods 242
Alphabetic List of Authors 251